According to Chapter 37, what kind of thinking leads to the endless cycle of birth and death, and what is the path to liberation from it?

Chapter 37 explains that the root cause of the endless cycle of worldly existence (Samsara), where rebirth follows death, is the ignorance born from a sense of dualism. The text states that a person who holds the belief, "Parabrahman is different from me; I am not that, I am something else," is perpetually subject to this cycle. The path to liberation, as implied in chapter 37, is to overcome this deluded thinking. Liberation is achieved by realizing the non-dual truth that the same divine principle pervades everything, from the creator down to a blade of grass. The true heavenly state is this realization, where one moves about fearlessly, free from the duality of 'do's and don'ts'.